So I am playing Q4 last night and I click on the Updates button from the main menu screen and it says that a new patch is available. So I click to go and get the patch and it's talking about the SMP support and new maps. Unfortunately, though, the patch is only for Windows and Linux. No Mac patch, yet. I guess the Mac OS X version of Q4 doesn't look to see what operating system you're running. Sigh.